function PopUp(theURL,winName,features, myWidth, myHeight, isCenter) { //v3.0

  if(window.screen)if(isCenter)if(isCenter=="true"){

	var myLeft = (screen.width-myWidth)/2;

    var myTop = (screen.height-myHeight)/2;

    features+=(features!='')?',':'';

    features+=',left='+myLeft+',top='+myTop;

  }

  window.open(theURL,winName,features+((features!='')?',':'')+'width='+myWidth+',height='+myHeight);

}